Tea polyphenols exerts anti-hepatitis B virus effects in a stably HBV-transfected cell line

Abstract

In this study, the anti-HBV effects of tea polyphenols (TP) were examined. After cells were exposed to TP for 3, 6, 9 days, amounts of HBsAg, HBeAg and HBV-DNA released into the supernatant of the cultured HepG2 2.2.15 cells were detected. TP, to some extent, inhibited the secretion of HBsAg and strongly suppressed the secretion of HBeAg in a dose-dependent (P<0.01) and time-dependent manner, with 50% maximal inhibitory concentration (IC50) value being 7.34 μg/mL on the 9th day, but the time-dependence was not significant (P=0.051). Expression of HBV-DNA in the supernatant of the cell culture also was significantly decreased in a dose-dependent fashion (P<0.01). The IC50 of TP in inhibiting HBV DNA was 2.54 μg/mL. It concluded that TP possessed potential anti-HBV effects and may be used as a treatment alternative for HBV infection.

Keywords

liver diseases / hepatitis B virus / anti-HBV effect / tea polyphenols (TP) / HepG2 2.2.15

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